Yahoo posted a list of America's Top 20 (101) Restaurants it was noted that it is the 2nd annual from this source. Which is not exactly a ring endorsement for the credibility of same: however we do love lists. The methodology is not discussed in detail however their approach, in a topic as broad and subjective as food, is presented. They acknowledge a mix of casual and fine dining and everything in between and note the recent reviews in the NY Times food section of many casual restaurants.
There are a few Philadelphia restaurants on the list including Zahav, Verti and Le Bec Fin. Well there goes a bit of credibility for their listing. LaBan has been frequently challenged when issuing a Philly Best List which presented all types of establishments compiled into his Best of List. Unless specifically designating restaurants by type and class the approach of mixing is used by most evaluators.
You may find the focus on NYC and California restaurants obvious and a bit exclusionary. I suspect you may find the list both informative and perhaps not representative of your tastes.